Elliptical Mirrors are plane mirrors with a coated elliptical face. When the mirror is rotated by 45° about the minor axis, the resulting clear aperture is circular.
Specifications
Substrate: | Fused silica or Pyrex |
Dimension: | +0/-0.1 mm |
Clear aperture: | >90% of dimension |
Thickness: | +/-0.2 mm |
Parallelism: | < 3 arc minutes |
Flatness: | λ/4@633nm (front surface) |
Surface quality: | 40-20 S/D (front surface) |
Back surface: | Fine ground |
Coating: | Metallic or dielectric high reflection coating |
Bevel: | 0.2mm x 45° |
Elliptical Mirrors are plane mirrors with a coated elliptical face. When the mirror is rotated by 45° about the minor axis, the resulting clear aperture is circular.
![](\"/userimg/10751/Elliptical-Mirror-1.jpg\"/)
Specifications
Substrate: | Fused silica or Pyrex |
Dimension: | +0/-0.1 mm |
Clear aperture: | >90% of dimension |
Thickness: | +/-0.2 mm |
Parallelism: | < 3 arc minutes |
Flatness: | λ/4@633nm (front surface) |
Surface quality: | 40-20 S/D (front surface) |
Back surface: | Fine ground |
Coating: | Metallic or dielectric high reflection coating |
Bevel: | 0.2mm x 45° |
